Portable joint for ropes, wire, and the like.



1. PARK.

PORTABLE JOINT FOR ROPES, WIRE, AND THE LIKE.

APPLICATION FILED APR.25, 1913.

1 ,1 59,863. Patented Nov. 9, 1915.

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COLUMBIA PLANOORAPH CO..WA:HINC|TON. 11.6.

JOHN PARK, OF NEW YORK, N. Y.

PORTABLE JOINT FOR ROPES, WIRE, AND THE LIKE.

Specification of Letters Patent.

Application filed April 25, 1913. Serial No. 763,556.

To all whom it may concern.-

Be it known that I, JOHN PARK, a resident of the city of New York, in the State of Yew York, United States of America, have invented certain new and useful Improvements in Portable Joints for Ropes, Tire, and the like; and I do hereby declare that the following is a full, clear, and exact description thereof.

This invention relates particularly to portable joints of the type disclosed in a patent granted to me on July 8, 1913, under 1,066,'?' 51, and comprises a carrier and a clamping member, the carrier consisting of prolate guides extending continuously from end to end thereof and formed to accommodate the clamping memher and receive portions of the rope or Wire crimped thereby. For full comprehension, however, of my invention reference must be had to the accompanying drawings forming a part of this specification in which similar reference characters indicate the same parts, and wherein:

Figure 1 is a plan view of my improved joint with two portions of a wire rope to be united lying therein ready to be clamped, the carrier member being shown partly in longitudinal sectional view; Fig. 2 is a transverse sectional view taken on line A A Fig. 1; Fig. 3 is a side elevation of the device; Fig. a is a plan view of my improved joint in the act of being closed upon two portions of a wire rope to unite such portions to form a loop; Fig. 5 is a detail side elevation of the clamping member removed; Fig. 6 is a plan view thereof; Figs. 7 and 8 similar views respectively of a modification; and Fig. 9 is a plan view of a plate out ready to be forged'to present my improved carrier.

The carrier member consists of a plate like device I) with its side edges bent back upon itself in curved form to present a pair of guides 0 extending in length from end to end of the carrier, such guides being formed with lateral openings or slots d.

The clamping member consists of a bar the opposite ends'of which are formed with cam faces 6 sheared ofl at their forward centrally bored to receive a pintle prefer? ably in the'form of a rivet h. This clampng member may be formed either as shown in F gs. 5 and 6 with the cam ends finished with flat faces or as shown in Figs. 7 and 8 with such faces grooved to conform to the rope or wire to be engaged thereby.

In order to secure a proper gripping of the ends of the rope or wire the slot at one side of the carrier is located a short distance nearer one end thereof and a slot at the other side a'short distance nearer the opposite end of the carrier, such slot being of. a length to permit the cam ends of the clamplng member to displace the rope or wire thereunto and as such clamping member approaches a position at right angles to the carrier to crimp the rope or wire upon the end wall k of the slot.

I prefer to forge my carrier member from a plate the dimensions of which may be varied to suit different sizes of joints. I find a square plate most suitable for makingcar- Patented Nov. 9, 19 15.

nor members for joints uniting sections of five-sixteenths wire cable. In order to ob tain the best results the slots of the carrier member and the cam face of the clamping member must be made and relatively disweight the cable may be called upon to withstand. In Fig. 9 the circle m is described equal in diameter to the pintle. Space is provided at each side of this circle for the width of the clamping member and to per,

mit the cable to pass, such spaces being of a width equal to about three and one-half times the diameter of the pintle hole from each side of such hole. with the pintle hole and equal in diameter to three times that of the hole is described and a second concentric circle 2 three and one-half times the di'ameterof the pintle hole is then described, and a third concentric circle 3 four'tinies the diameter of'the pintle hole. Parallel lines 4 and 5 are then drawn at right angles and transversely to A circle 1 concentric the plate and touching the circle 1. Space is then allotted for the concave wings forming the guides from the plate surfaces at the outer sides of the lines 41 and and equal in extent to approximately three times the diameter of the pintle hole, allowance being made for shrinkage in forging. At the point of intersection. of the parallel lines 4 and 5 with the circle 2, at the right above the pintle hole and at the left beneath it, lines 6 and 7 are drawn across the plate surfaces 10 and at ri ht angles to such lines 4: and 5. These lines 6 and 7 establish the positions of the slot ends 70 upon which the rope cable or wire ends are crimped. (It may be mentioned here that this location is for a right hand lock). The lines forming the inner walls it, relatively to the carrier, of the slots (Z are then drawn as at 12 par allel to the lines 4- and 5 touching the circle 3 and extending from the lines 6 and. 7 to lines 13 drawn at right angles to-the lines 4 and 5 from end to end. of the plate and touching the circle 1. The lines 14 representing the outer walls is of the slots (Z are then drawn parallel to the lines 12 and spaced therefrom a distance slightly greater than the diameter or gage of the wire cable, rope, or wire to be united. These measurements determine the proper proportions in length of slots and. relative positions thereof proportionately to the wire cable, rope. or wire, and the cam faced clamping member is laid out proportionately relatively to the wire cable rope or wire as follows Referring to Fig. 6: On the center 16 are described the circle 17 for the pintle and a second circle 18 equal in diameter to the circle 1 (Fig. 9) and on centers 21 and 252 at a distance on each side of'the center 16 about three-eighths greater than the diameter of the pintle hole 17 are described a pair of circles 19 and 20 equal in diameter to circle 18. The width of the clamping member is then established by measuring off at each side of the pintle hole 17 and on a line 23 intersecting the centers 21. 16 and 22 a distance eoual to the diameter of the pintle hole. Lines 24 and 25 are then drawn "at right angles to the lines 23 and intersecting the circles 18 19 and, 20. The outline of the clamping member is defined bya line extending from point of intersection of line 2 1 with circles 20 at the right of the line 23 and below the center 16 horizontally to the point of intersection with the circle 18 then following the circle 18 to the point of intersection with circle 19 then following circle 19 to the point Where this circle is in tersected by the line 25 then along the line 25 to the point of its intersection with circle 18 followin this circle to the point of intersection of circle 20 which is followed to line 2 1. In this manner the length and breadth of the cam surfaced clamping member is established. This member may be rotated on its pintle in the circle 18.

Operation: By turning the clamping member clock-wise the cam-faced ends are caused to bear upon the portions of the cable rope or wire lying in juxtaposition with slots thus forcing such portions outwardly and crimping them upon the end the clamping ends adapt them for bending,

and crimping into the slots the cable rope or wirehowe er strong and stitf.

In constructing the carrier it must be carefully observed that the pintle hole is located midway between the parallel lines 18 extended from the opposite ends of the re spective slots. This will, with proper length of slots. place the pintle in proper position relatively to the ends 70 of the slots upon which the portions of the cable rope or wire are crimped.

The particular manner of laying out the joint may be Varied without departing from the spirit of my invention.

What I claim is as follows A. portable oint for the purpose set forth comprising an abutment member having continuous guides extending throughout the main length of the same, said guides having the ends of the openings offset relatively to each other each of said openings having'a portion intersecting a plane extending transversely to the abutment member and in which the pivot of the clamping member is located, a clamping member, capable of making a complete revolution, pivotally connected to the abutment member and having a pair of oppositely projecting jaws, the distance between one end wall of each opening and the are described by the end of each jaw being less than the diameter of the cable rope or wire to be joined for the pur-' pose of crimpingthe same upon the said end Walls. 7

In testimony whereof I have signed my name to this specification in the presence of two Witnesses.

JOHN PARK. lVitnesses:

GEORGE G. SCHRETBER, FLORENCE W. Borivm.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents, Washington, D. 1. 

